CVE-2025-63681 — MEDIUM (4.3)

Vulnerability Description

open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Openwebui	Open Webui	0.6.41

Related Weaknesses (CWE)

CWE-284

References

https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/ExploitThird Party Advisory
https://github.com/open-webui/open-webui/blob/46ae3f4f5d7d4d706041bdae4ad2d802e5Product
https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/ExploitThird Party Advisory

FAQ

What is CVE-2025-63681?

CVE-2025-63681 is a vulnerability with a CVSS score of 4.3 (MEDIUM). open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop ...

How severe is CVE-2025-63681?

CVE-2025-63681 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-63681?

Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.